package com.demo.service;

import com.demo.entity.po.User;

/**
 * @author simon
 * @date 2019/5/5 14:43
 * @copyright:
 * @modifier
 * @motto a no talent, people who have to study hard
 */
public interface UserService {
    /**
     * 根据ID查找用户
     *
     * @param userId
     * @return
     */
    User findById(String userId);
}
